It’s the same problem that every parody site that does this has.

They pretend to be alt-right in a way that anyone with logic will understand is glaringly obvious. Unfortunately, alt-right types are both lacking in critical thinking, and also in personal connections. So, they see a place that posts the things they genuinely believe, and feel like they fit in - even though everyone else is doing it satirically.

Eventually, the alt-right types get more and more populous, and push things further and further, and the logical people slowly start to think “okay this place is a shithole now” and move on. Aaannndddd slowly it becomes another neo-Nazi website.

This happens often, especially because of how quick and easy it is to make “content” nowadays. Satire forums are a dead medium, unfortunately. They will always end up like this unless they’re policed heavily- and people hate overzealous moderation.